Merriam-Webster's Dictionary and Thesaurus - Merriam-Webster [820]
usually look into delve, dig, explore, go, inquire, investigate, probe, research—more at EXPLORE
look·out noun 1 : a person assigned to watch (as on a ship)
2 : a careful watch
3 : a view from a particular place : VIEW
4 : a matter of concern
5 : an elevated place or structure affording a wide view for observation
Synonyms
[1] custodian, guard, guardian, keeper, picket, sentry, warden, warder, watch, watchman—more at GUARD
[2] alertness, attentiveness, surveillance, vigilance, watch
[3] outlook, panorama, prospect, view, vista—more at VIEW
look up verb 1 : IMPROVE 2 : to search for in or as if in a reference work 3 : to seek out esp. for a brief visit 1loom noun : a frame or machine for weaving together threads or yarns into cloth 2loom verb 1 : to come into sight in an unnaturally large, indistinct, or distorted form 2 : to appear in an impressively exaggerated form 3 : to take shape as an impending occurrence loon noun : any of several web-footed black-and-white fish-eating diving birds loo·ny also loo·ney adjective loo·ni·er; -est : disordered in mind : CRAZY, FOOLISH loony bin noun : a psychiatric hospital 1loop noun 1 a : a fold or doubling of a line through which another line or hook can be passed